Drawbar attachment for tractors



F. J; SILVA DRAWBAR ATTACHMENT FOR TRACTORS Dec. 30, 1924.

2 Sheets-Sheet 2 Filed 'Nov. 14 1922 INVENTOR.

ATTO NEYS.

FRANKLYN J.- Steve, Q11

Salif F1a-aircrew.

nnaWBAR arracnivranlvr. son. assurons.

Applicationled November 14, 19,22. Serial No. 600,800.

To all whom may concern.'

Be itknown that I, ERANKLYN J. SILVA, a citizenof` the, United States,residing at Oakland, county of Alameda, and State of California, havelinvented, new and useful Improvements in" Dra-wbar- Attachments forTractors, of which the :following is a specification.

This invention relatestp tractors and particularly pertainsto adapting atractor of the Fordson type toheavy duty.

Itis thev principal object of; the present invention to adapt, a,tractor`v ott the Ford son type for heavy duty work` by equipping itwith al generally improvedI drawbar attachment and, by compensating torthe increase in weight and pull causedl by heavy duty work.

'The invention` contemplates the use of. a sub-frame securely anchoredto the axle and transmission housings of a tractor and towhich.adrawbzn"Y may beeasily and quickly connected or detached: meansare also provided to compensate for the weight of the r attachmentalluded to, and the increased pull caused by heavy duty.

One form which the present invention may assume is exemplified in thefollowing description and illustrated by way oit example in theaccompanyingdrawings, in which:

Fig. 1 is a side elevation of the Fordson type of tractor illustratingthe preferred form of the invention mounted thereon.

Fig. 2 is a perspective view of a device embodying the invention.

Fig. 3 is a view in plan of the invention anchored to the axle housingand transmission housing of a tractor.

Fig. 4 is a section taken on line 4CH-4 oi Fig.

Referring more particularly to the drawings. 10 indicates a tractor ofthe Fordson type equipped with a drawbar attachment 11. The attachment11 is most clearly shown in Fig. 2 and consists of a pair of channel barside members 12 formed with inturned ends 14. These ends are connectedby an upper plate 15 and a lower plate 16. The lower plate is equippedwith a wear plate 16 which may be detachably secured thereto in anydesirable manner permitting its removal and replacement. The upper endlower plate and the wear plate are formed with aligned holes 17 for the.reception of kingpin 18 which may be inserted touraintain a drawbar 19in place between thev plates. f

The front ends ot the channel: side members 12-are rigidly connected bya trans? verse bar 2O which is Jformed to embrace the ends ot, the sidemembers asV shown. This transverse bar extends bene/21th thetransmission housing ot the tractor, and is securely anchored thereto bymeans. otl a strap U-bolt 21. lThe ends otthis bolt pass throughopenings 22.in,the bar, fonthe reception of nuts which iirnilyconnectthe bar and thehousing.

Each side member,12.is iittedwith av clip 23 which is formed witlrlioles2,41 for: the ref ception of the ends, of.4 U-bolts 2 5. By means. ofthese bolts, the side members 1-2 may be rigidly anchoredtotheaxlehousing oi"|` atractor` as shown in Eig. 3. i

Secured to eachl side member, 12 i is anl up.-y right supporting barormednvithahorizonf tal extension 26 which connects with an ellipticalspring 28. This spring serves to support aseat 29. The front end of thehorizontal extension 27 is supported by the top ot the axle housing.

To compensa-te for the weight of the attachment when mounted on the rearof the tractor, a weight 30 is litted to each front wheel. These weightsare designed to tit over the wheel hub and nest within the felloe snuglyagainst the disc portion of the wheel. These weights tend to overcomethe tractors tendency to raise on its rear wheels the moment acomparatively heavy load is attached to the rear of the machine.

In operation of the device, the drawbarl attachment is constructed asshown and described and is mounted beneath the axle and OAKLAND,oALrronNra, assignee To Mossel/I,- ll, QE, i.

that by mounting the drawbar attachment below the axle and by applyingweights to the Wheels, the center of gravity of the tractor isconsiderably lowered and will hold the road under practically allconditions.

From the foregoing it is seen that by the use of comparatively simpleexpedients I have equipped a tractor of the Fordson type for heavy duty,and although` I have shown and described the invention in detail, it ist0 be understood that various changes in the construction andarrangement of the parts may be made by those skilled in the art withoutdeparting from the spirit of the invention as claimed.

Having thus described my invention, what I claim and desire to secure byLetters Patent is: l'

l. In combination with a tractor of a draw bar attachment thereforcomprising a frame adapted to be suspended beneath the axle andtransmission housings of the tractor, said frame comprising a pair ofside m-embers, plates connecting one end of the side members and locatedat the top and b0ttom thereof for receiving a drawbar, a transverse barrigidly connecting the other ends of the side members and located at thebottom thereof whereby it will extend beneath the transmission housingof the tractor, and a strap member connected at its ends to saidtransverse bar and impressing the transmission housing to firmly connectthe frame thereto, and U-bolts for connecting said side members to theaxle housing whereby weight imposed by a drawbar on the frame will betransmitted to the axle and transmission housings of the tractor.

2. In combination with a tractor of a drawbar attachment thereforcomprising a frame adapted to be suspended beneath the axle andtransmission housings of the tractor, said frame including a pair ofchanneled side members, plates rigidly connecting one end of said sidemembers and located at the top and bottom thereof, a wearing platedetachably mounted on the top surface of the bottom plate, all of saidplat-es being formed with an aligned opening for the reception of a kingbolt to lock a draw bar inserted between the top plate and the wearingplate, a

transverse bar rigidly connecting the other cnds of the side members,said transverse bar being adapted to extend beneath the transmissionhousing of the tractor, a strap U-b0lt adapted to impress thetransmission housing and being connected at its ends to said transversebar whereby to anchor the end of the frame securely to said transmission housing, clips on said side members, and U-bolts adapted to embracethe ends of the axle housing and be connected to said clips whereby toanchor said side members to the ends of the axle housing.

FRANKLYN J. SILVA.

